Renesas R5F104GAANA#20

Overview

R5F104GAANA#20 from Renesas is a 48-pin HWQFN-packaged 16-bit RL78/G14 microcontroller with 128 KB flash, 12 KB RAM, and 8 KB data flash, operating from 1.6–5.5 V at -40 to +105°C (industrial grade G), delivering 44 DMIPS at 32 MHz for low-power embedded control in motor drives, sensor nodes, and industrial HMI.

For engineers reviewing the R5F104GAANA#20 datasheet, R5F104GAANA#20 pinout, R5F104GAANA#20 application, or R5F104GAANA#20 equivalent, key selection criteria include its 128 KB code flash size, 48-pin 7×7 mm HWQFN-0.5 mm pitch package, integrated RTC + LVD + 10-bit ADC (20-channel), and support for SNOOZE mode (66 μA/MHz active, 0.60 μA RTC-only).

Technical Context

The R5F104GAANA#20 implements the RL78 CPU core with 3-stage pipeline CISC architecture, supporting instruction execution times from 0.03125 µs (32 MHz) to 30.5 µs (32.768 kHz), multiply/divide/accumulate instructions, and 1 MB address space. It integrates a high-accuracy ±1.0% on-chip oscillator (1–64 MHz selectable) and supports background data flash rewriting (BGO) with 1M write cycles.

Peripheral integration includes 12-channel 16-bit Timer Array Unit (TAU), real-time clock with calendar/alarm, 10-bit 20-channel ADC with internal 1.45 V reference and temperature sensor, dual 8-bit DAC outputs, two comparators, and serial interfaces: up to 8 CSI channels, 4 UART/LIN, and 10 I²C/Simplified I²C channels - all configurable via Event Link Controller (ELC) and Data Transfer Controller (DTC).

Key Specifications

Pinout & Package

Package: 48-pin HWQFN (7 × 7 mm, 0.5 mm pitch), exposed die pad recommended to be connected to VSS. Pin count and footprint match industry-standard QFN-48 layouts with 0.5 mm pitch.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar microcontroller applications.

Compared with R5F104GAANA#20, R5F104GHANA#20 offers 50% more flash and RAM in identical packaging - ideal for feature-rich firmware - while R5F104GKAFB#30 delivers triple the flash in an LFQFP variant, trading HWQFN's compactness for easier rework and thermal dissipation.

Availability

R5F104GAANA#20 is available at Aetrix Electronics and suitable for industrial motor control, environmental sensing, HMI panels, and PLC I/O modules requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for R5F104GAANA#20 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Renesas Electronics is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.

The RL78/G14 family targets cost-sensitive, ultra-low-power general-purpose embedded applications - balancing performance, integration, and energy efficiency for industrial controls, appliances, and sensor edge devices.

FAQ

What is the maximum operating frequency and corresponding DMIPS rating for the R5F104GAANA#20?

The R5F104GAANA#20 operates at up to 32 MHz with a measured performance of 44 DMIPS. This is achieved using the high-speed on-chip oscillator (±1.0% accuracy across 1.8–5.5 V and -40 to +105°C), and the RL78 CPU core's 3-stage pipeline architecture enables deterministic execution timing critical for real-time control loops in the R5F104GAANA#20.

Does the R5F104GAANA#20 support hardware-based debugging and secure firmware updates?

Yes, the R5F104GAANA#20 includes a fully integrated on-chip debug interface compatible with Renesas E2 emulator, supporting breakpoints, watchpoints, and flash programming. It also provides flash security features including block erase prohibition and flash shield window - enabling secure firmware updates and IP protection during production programming of the R5F104GAANA#20.

What analog peripherals are integrated into the R5F104GAANA#20, and how are they configured?

The R5F104GAANA#20 integrates a 10-bit, 20-channel ADC with internal 1.45 V reference and on-die temperature sensor; two 8-bit DACs (0–VDD output); and two comparators with selectable reference sources (internal/external) and operating modes. These are configured via dedicated registers (ADCR, DACR, CMPR) and supported by the Event Link Controller for autonomous triggering - all documented in the R5F104GAANA#20 hardware manual.

Can the R5F104GAANA#20 operate reliably in extended temperature environments, and what grade does it carry?

Yes, the R5F104GAANA#20 is rated for -40 to +105°C operation and carries the 'G' industrial grade designation, qualifying it for demanding environments such as factory automation, outdoor metering, and motor drives. Its voltage detector (LVD) with 14 programmable levels and RTC with calendar/alarm function remain fully operational across this full range - confirmed in the R5F104GAANA#20 datasheet Rev. 3.70.

What package type and pin pitch does the R5F104GAANA#20 use, and are there layout recommendations?

The R5F104GAANA#20 uses a 48-pin HWQFN package (7 × 7 mm body, 0.5 mm pin pitch) with an exposed die pad. Renesas recommends connecting the REGC pin to VSS via a 0.47–1 µF capacitor and soldering the exposed pad to a solid VSS plane for thermal and electrical stability. The R5F104GAANA#20 pinout and layout guidelines are detailed in Section 1.3.6 of the official datasheet.